[User 282437]

Playback is pretty muck OK on HD recordings & live TV off a mythtv backend (Ubuntu server & clients). Server and clients are running Ubuntu 18.04

There is one lone, older i3 CPU based client has Intel graphics. 

Playing HD recordings and LiveTV on it seems OK, with only the slightest hint of "stuttering", a little noticeable during high action sports etc. 

However, SD (756) playback is unwatchable.

The log is showing a lot of "CRenderManager::WaitForBuffer - timeout waiting for buffer"


 

2019-04-01 13:34:38.441 T:139676757255936  NOTICE: CDVDVideoCodecFFmpeg::Open() Using codec: MPEG-2 video
2019-04-01 13:34:38.457 T:139680235148224   ERROR: CShader::InsertSource - failed to open file gl_tonemap.glsl
2019-04-01 13:34:38.457 T:139680235148224  NOTICE: GL: Selecting YUV 2 RGB shader
2019-04-01 13:34:38.458 T:139680235148224  NOTICE: GL: NPOT texture support detected
2019-04-01 13:34:38.458 T:139680235148224  NOTICE: GL: Using GL_ARB_pixel_buffer_object
2019-04-01 13:34:38.458 T:139680235148224  NOTICE: Using GL_TEXTURE_2D
2019-04-01 13:34:39.041 T:139676757255936 WARNING: CRenderManager::WaitForBuffer - timeout waiting for buffer

Any help appreciated. In the meantime we're back to using the mythtv frontend with "VDAPU HighQuality" - working fine.

[disaacso]

Super late response here but I just had to re-solve this same problem (I think, I had bad judder but never checked the log).  Try setting your graphics driver up to use 2 buffers instead of 3 and change the buffer setting in the system settings (in kodi) to 2.

edit: this applies to intel graphics